#CoalHollowFire In today’s OP’s briefing, Operations Section Chief Rob Powell mentioned a slop-over in Division R near the southern perimeter of the fire. In wildfire terminology a slop-over is a fire edge that crosses a control line or natural barrier intended to confine the fire. In comparison, a spot fire is a small fire that is ahead of the main fire. Often caused by hot embers being carried to a receptive fuel bed. Spotting indicates extreme fire conditions.